- All sections
- E - Fixed constructions
- E21B - Earth or rock drillingobtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
Patent holdings for IPC class E21B 28/00
Total number of patents in this class: 517
10-year publication summary
|
53
|
47
|
53
|
43
|
35
|
26
|
16
|
12
|
14
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21292 |
42 |
| Thru Tubing Solutions, Inc. | 407 |
38 |
| Saudi Arabian Oil Company | 14369 |
28 |
| Ene29 S.ar.l. | 32 |
21 |
| National Oilwell Varco, L.P. | 1700 |
15 |
| Schlumberger Technology Corporation | 11940 |
11 |
| Aramco Services Company | 4190 |
9 |
| Impulse Downhole Solutions Ltd. | 53 |
9 |
| National Oilwell DHT, L.P. | 117 |
9 |
| Schlumberger Canada Limited | 7610 |
8 |
| Hydroacoustics Inc. | 15 |
8 |
| ITI Scotland Limited | 123 |
8 |
| Rival Downhole Tools LC | 49 |
8 |
| Helmerich & Payne Technologies, LLC | 123 |
8 |
| Schlumberger Technology B.v. | 5287 |
7 |
| KLX Energy Services LLC | 80 |
7 |
| Services Petroliers Schlumberger | 6022 |
7 |
| Weatherford Technology Holdings, LLC | 2166 |
6 |
| Schlumberger Holdings Limited | 2660 |
5 |
| CNPC USA Corp. | 182 |
5 |
| Other owners | 258 |